Fuel burner



Oct. 25, 1932.

C. J. SHERWOOD FUEL BURNER Filed Dec. 11, 1929 2 Shets-Sheet 1 1h ven for Car/g/e JS/rerwaml.

W. 4248172 qys 1932- v c. J. SHERWOOD 1,384,394

FUEL BURNER Filed Dec. 11, 1929 2 Sheets-Sheet 2 [n ven for, Carly/e J Sherwood,

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Patented Oct. 25, 1932 UNITED STATES PATENT OFFICE CARLYLE J. SHERWOOD, OF LOB AHGELES, CALIFORNIA, ASBIGHOR '10 001mm. INC 'OF LOS ANGELES, CALIFORNIA, A. CORPORATION OF car-mom FUEL BURNER Application Med December 11, 19291 Serial No. 418,829.

the lurnnce and through which a home front unother centrelly disposed luel burner projectech end with which flame the ilnrne oi the hurner co-iningled. in this type o'l hurner it high degree oil heat is ohtnined and it sometimes occurs that the unnular 'iuel hurner hecoines dnrnnged end must he replnced. lit

nlso hes heen lound desirable to variebly regulnte the how of incl at vnrious points urn-end the circurnlerence oi said hurner. When the contents oil the unnular hurner must he removed it is now necessery to shut down the 'luinuce and to dismantle the entire hurner structure so that the annuler iluel hurner' may he replecetl.

- till it is the principnl object oi the present invention to provide; a burner construction in which a sectional annular burner is provided and is so mounted within the structure as to he easily removed without dismantling the entire burner, and easily removed in its entirety without dismantling the entire burner structure, or any one of its sections to be replaced in a convenient manner. the structure iurtherproviding means whereby the various sections of the burner will be supplied with fuel, and individually or collectively regulated.

Fig. 2, showing the assembled annularburner.

broken away for Fig. 4 is en enlar ed in entary view showing the outer portion of t e burner struc ture removed and indicating the manner in which one of the annular burner sections may be removed.

5 is en enlnrned view in transverse section through the annular lrurneu' as seen on the line 5-5 o'l 3 and showing the menner in which the hurner sections they he conveniently positioned with relation to the housing.

lte'lerringr more pnrtieulurly to the drew lugs, 10 indicates the well oil the turncuua herring n front cover it. opening till is termed through the well it or the nuce and is lined with. suitable nnnulur tire clny thrcnt The pesse sway through snid throat is tnpered inwnr lyby it well it to a point midwny the thickness oi the thront andis then termed with an outwnrdly tnperine; well it, during into the hody oil theiurnnce. 'lhe tapers wall terms a Wen turi like pessegewny into the furnace nnd through which the tuel, products oi eoiuhus tion and air may he projected. Circuinscrih inn the mouth of the firing opening it which occurs through the lining 14 is an annular ring-shaped burner structure it. This burner structure is particularly shown in Fig. '3 as being lorrned by multiple segments lh, each of which comprises an arcuate burner length 20, a radially extending pipe connec tion hi and a boss 22 at the outer end thereof to receive a fuel supply pipe 23. The ends oi the arcuate sections are suitably beveled and are disposed parallel to the central radial lid ill

axis of the section, so that the sections may be individually moved radially of the assembled strueture and thus may be conveniently removed from the assembled burner, and replaced with relation thereto.

I The inner walls of the burner sections have an inwardly tapered face 24 terminatin in an outwardly curved portion throu h w 10h fuel ports 25 are formed. The ang e of the face 24- of the burner wall substantially agrees with the angle of the face 15 of the fire opening and thus forms a continuatmn of that throat. The separate burner sections are fitted with a plurality of pairs of lugs 26 160 f 27. The burner housing 27 is disposed with ing 27.

its longitudinal axis horizontally and coincident with the-longitudinal axis of the fire opening and the annular burner structure 18. Adjacent to the separate sections 13 of the burner structure are cutaway portions 28 formed through the wall to permit access to the pipes 23, and to make it possible for a torch to be used in cutting off the pipes when it is necessary to replace the burner sections.

- A flange 30 is formed around the body of the burner housing 27 and secures the housing to the front plate 12 of the furnace. An outer wall 31 is here shown as being provided and as spaced from the main furnace wall. This wall receives an annular member 32 secured to it by a flange 33 and within which a damper plate 34 is positioned. Guide glands 35 are formed through the end wall of the damper plate 34 and receive operating rods 36 which project inwardly and are connected to a frusto-conical damper member 37, which may be horizontally moved with relation to the open end of the burner hons- Extending longitudinally through the members 34 and 37. and disposed along the horizontal longitudinal axis thereof, is a fuel supply pipe 38, through which liquid fuel may be supplied to its outlet end. A conical diffuser plate 39 is mounted on the end of the pipe 38 to insure that the co-mingled air and fuel will be projected forwardly and into the throat of the furnace in a state of mixture which will insure proper combastion of the liquid fuel and gaseous fuel. It is understood that if desired the pipe 38 might be enlarged and powdered fuel fed therethrough without departing from the spirit of the invention.

The various pipes 23 of the arcuate burner sections are here shown as separately provided with regulating valves 40, which control the flow of fuel through the individual pipes from a manifold 41. This manifold is fitted with a regulating valve 42 interposed between it and a fuel supply pipe 43.

In operation of the present invention the burner structure is assembled as shown in :Fig. 2 of the drawings. At this time a regular supply of fuel may be deliverd through which the flow of fuel to all of the arcuate burner sections may be simultaneously regulated by the valve 42. The ignited fuels from both burners will co-mingle and will be projected inwardly and centrally of the passage 17 through the throat lining 14. The combustion performance may be controlled by the dampers.

In the event that any one of the arcuate segments of the annular burner becomes damaged, or for any other reason re uires removal or replacement, the supply of uel is discontinued to all of the pipes 23 and 38, after which bolts 44 are removed to permit the entire damper structure to be withdrawn. The burner will then be disassembled to the extent indicated in Fig. 4 of the drawings, and an acetylene torch or other equivalent appliance may be inserted into the housing 27 and through one of the openings 28 therein, so that the pipe 23 of the burner section 19 may be disconnected from. the pipe and removed through the housing 27. It is assumed that the extreme condition of heat under which the burner has operated will prevent the pipe 23 from being unscrewed from the boss 22 of the burner section 19, as this usually proves to be the case. In any event, after the burner section has been disconnected from its pipe, it may be moved radially and drawn between the adjacent ends of the other two sections. After this has been removed and the pipe 23 has been replaced, it is then possible to place a new burner section in position and to screw the pipe 23 into it. At that time the lugs 26 of the burner section are positioned upon opposite sides of the edge of the housing 27 and act to position the burner section while the pipe 23 holds it in place.

As shown in Fig. 2 of the drawings, a packing ring 45 is interposed between the lining ring 14 and the burner segments. This packing ring is preferably made of asbestos or simwhen the burner segments are replaced.

It willthus be seen that by the structure here disclosed. it is possible to replace or interchange a burner, or a segment thereof, without necessity for completely dismantling the burner structure, and without making it necessary to shut down the furnace for any appreciable period of time.

'While I have shown the preferred form of my invention as now known to me, it will be understood that various changes may be made in combination, construction, and arrange ment of parts by those skilled in the art with out departing from the spirit of my invention as claimed.

Having thus described my invention, what I elai'm and desire to secure by Letters Patcut, is:

1. A burner structure comprising a central fuel burner adapted to project a flamethrough a firing opening, a housing adjacent said burner and the mouth of the firing opening, and an annular burner ring concentric with the axis of the mouth of the firing openshaped burner arranged aroun ing, and interposed between the wall of the furnace, through which the firing opening occurs, and the forward end of the housing, said annular burner being formedin arcuate segments disposed in interlocking relation with the end of said housing.

2. In a burner structure, a com )osite ring a firing opening, and adapted to project a flame thereinto, said burner comprising a plurality of disassociated separate arcuate sections, a fuel connection extending laterally from each of said burner sections and away from I the zone of furnace heat, and fuel pipes, one

connected with'each section, for supplying fuel thereto, and by which said sections are individually supported.

3. In a burner structure, a ring shaped burner arranged around a firing opening in a furnace wall, and adapted to project a flame thereinto, said burner comprising a plurality of separate arcuate sections, a fuel connection extending from each of-said burner sections, and fuel pipes, one connected with each section, for supplying fuel thereto, and by which said sections are individually supported, a burner housing at one end of which said annular burner is positioned said burner sections being interposed between the end of. the burner housing and the furnace wall, and means carried by the burner sections engaging the housing and holding said sections in relation thereto and to each other.

4. In combination with the wall of a furnace through which a firing opening is formed, an annular burner concentric with the axis of the mouth of said opening, said burner being formed in a plurality of arcuatc sections, fuel pipes, one connecting with each of said burner sections and supplying fuel therefor, a burner housing permanently supported with relation to the wall,

the annular burner being interposed between said housing and the wall, and means for detachably positioning the separate burner sections with relation to the end of the housing.

5. In combination with the wall of a furnace through which a firing opening is formed, an annular burner concentric-with the axis of the mouth of said opening, said burner being formed in a plurality of ar'cuate sections, fuel pipes, one connecting with each of said burner sections and supplying fuel therefor, a burner housing permanently supported with relation to the wall, the annular burner being interposed between said housing and the wall, and means for detachabl positioning the separate burner sections wit relation to the end of the housing, and the opening through the wall of the housing, rendering the points of connection between the individual burner sections and their fuel pipes accessible.

6. In a burner construction. an annular housing, a plurality of arcuate burner sections positioned adjacent the end thereof and arranged to form a ring-shaped burner, separate fuel pipes, one connecting with each of said burner segments and acting to supply fuel thereto, and to individually support the same, and lugs carried by each of the burner sections and adapted to engage the end of theburner housing in a manner to position the burner with relation thereto.

7. In a burner construction, an annular housing, a plurality ofarcuate burner sections positioned adjacent the end thereof and arranged to form a ring-shaped burner, separate fuel pipes, one connecting with each of said burner segments and acting to supply fuel thereto, and to individually support the same, and lugs carried by each of the burner sections and adapted to engage the end of the burner housing in a manner to position the burner with relation thereto, and an opening through the housing wall to render the point of connection between the in spaced relation to said wall, arcuate sections of the forward wall of said housing being cut away at spaced intervals along the circumference thereof, a plurality of burnersections forming a composite circular burner interposed between the furnace wall and the forward end of the burner housing, and means carried upon the separate burner sections for, interlocking with the portions of the burner housing occurring between said arcuate cut away sections whereby the burner will be held in its assembled position.

9. A fuel burner construction, comprising a cylindrical burner housing, the walls of which extend along the perimeter of an opening in the wall of a furnace, said housing being supported with its forward end in spaced relation to said wall, arcuate sections of the forward wall of said housing being cut away at spaced intervals along the circumference thereof, a plurality of burner sections forming a composite circular burner interposed between the furnace wall and the arcuate' cut away sections whereby the burner will beheld in its assembled position, and separate fuel supply means for each of said burner sections acting to support the sections.

CARLYLE J SHERWOOD. 

